Electrode device for intracardiac stimulation of heart tissue and/or sensing heart signals in a patient

摘要

The invention relates to an electrode device, for intracardiac stimulation of heart tissue and/or sensing heart signals in a patient, with an electrode cable containing at least two elongate, flexible conductors, insulated from each other, and with an electrode head, arranged at the distal end of the electrode cable and provided with at least two conductive surfaces, each connected to a separate conductor. In order to achieve an electrode device of this kind with which the distance between the conductive surfaces can be varied continuously, simply and easily, it is proposed according to the invention that the electrode head (9, 30, 31) consist of two parts (7, 8, 30, 31), moveable in relation to each other, each part (7, 8, 30, 31) being provided with at least one conductive surface (10, 11, 34, 35), and that the electrode device (1, 18, 25) be provided with a control means (13, 19, 33) which is movingly arranged at the distal end of the electrode cable (22, 26) immediately behind the electrode head (9, 30, 31), so any change in the position of the control means (13, 19, 33) acts on the parts (7, 8, 30, 31) of the electrode head (9, 30, 31) in such a way that the distance between the conductive surfaces (10, 11, 34, 35) can be varied.